1. MOVEMENT DIMENSIONS
·
Outside diameter
ψ
30.80mm
(12H~6H)
x 29.10mm
(3H~9H)
·
Casing diameter
ψ
29.00mm
(12H~6H)
·
Total height
5.90 mm
·
Dimensions of small hands away from center
7.50 mm
2. BASIC FUNCTION
·
Jewels
0 jewel
·
Regulation device
Nil
·
Accuracy
± 20 seconds per month at normal temperature range
·
Battery life
Approx. 3 years
· Operation temperature range
From - 5
℃
to + 50
℃
· Antimagnetism
≧
1600 A / m
( direct current magnetic field )
· Shock resistance
On equal level with general quartz movement
·
Hands
Hour
Minute
Small sec. / 24 hours
Center chrono.
second
Chrono. minute
3. OSCILLATOR
·
Type of quartz oscillator
Tuning fork
·
Frequency of quartz oscillator
32,768 Hz
4. BATTERY
·
Type
Silver oxide battery
·
Voltage
1.55 V
·
Size
ψ
9.5 x t 3.6 ( mm )
·
Recommended battery
SR936SW ( SEIZAIKEN )
5. DIAL FIXED METHOD
Dial legs fitted with holes on the main plate
6. TEST OF ACCURACY
·
Equipment to be used
SEIKO Quartz Tester QT - 99
Greiner Quartz Timer - C
Witschi Q-Tester 4000
·
Duration of measurement
10 seconds
·
Microphone to be used
Electromagnetic detection type
* All specifications are subject to change without notice.
SII Products
Version: 1
CAL. VK73A 13 ½ Ligne Quartz Movement
Two Hands with 1/5 Center Chronograph Second,
Less than 0.50µN·m
( 50mg·mm )
-----
Regulation hands
unbalance
The moment of
inertia
MOVEMENT SPECIFICATION - 1
Less than
400mg·mm²
Less than
30mg·mm²
Less than 0.60µN·m
( 60mg·mm )
Less than 0.05µN·m
( 5mg·mm )
Less than 0.20µN·m
( 20mg·mm )
Less than 0.05µN·m
( 5mg·mm )
-----
-----
Small Second, Small Chronograph Minute, Small 24 Hours Indicator, Big date
